Circular-knitting machine



(No Model.) v 2 Sheets-Sheet 1.

H. CURTIN GIRGULAR KNITTING MAGHINE. No. 402,906. Patented May '7, 1889.

. WITNESSES: 'INVENTOR W W. BY 4 aWM I AM ATTORNEYS N. mzns Pnmmm m m. Washinginm n. a

(No Model.) 2 sheets-sheet 2.

H. GURTIN. CIRCULAR KNITTING, MACHINE.

No. 402,906. Patented-May 7, 1889.

WITNESSES: I INVENTOR @J%%JMMW /f f Q I ATTORNEYS n. PEYERS. Plgolm khognphur, Washington. n.c.

UNITED STATES PATENT OFFICE.

HENRY OURTIN, OF LITTLE FALLS, NEW YORK.

CIRCULAR-KNITTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 402,906, dated May *7, 1889.

Application filed January 21, 1889. Serial No. 296,960 (No model) To all whom it may concern.-

Be it known that I, HENRY OUETIN, of Little Falls, in the county of Herkimer, in the State of New York, have invented new and useful Improvements in Circular-Knitting Machines, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to the class of knitting-machines in which the knitting-needles are carried on a rotary cylinder and receive a reciprocating motion by cams sustained stationary at the outside of the needle-cylinder.

The chief object of this invention is to afford access to the aforesaid cams, when required for repairs or adjustment, without necessitating the removal of the needles; and to that end my invention consists in the improved construction and combination of parts hereinafter fully described, and specifically set forth in the claims.

In the accompanying drawings, Figure 1 is a vertical transverse section of the cam-rings and their support, with the upper portion of the needle-cylinder broken away to better illustrate the aforesaid parts. Fig. 2 is a ver tical transverse section of one side of the needle-cylinder, cam-rings, and support of the latter; and Fig. 3 is a top plan view of the aforesaid parts.

Similar letters of reference indicate corresponding parts.

B represents the base or bed plate of the machine. I denotes the driving gear-wheel, which is arranged horizontally under the bedplate and has its hub fitted in a downwardprojecting cylindrical bearing, 13, formed 011 the bed-plate.

A represents the needle-cylinder, which is firmly secured to the hub of the gear-wheel I, so as to rotate with the same. One of the needles is shown at a in Fig. 2 of the drawings. The shank of each of the needles is provided with an outward-proj ecting portion, a, which engages at opposite ends with cams c 0, attached to rings P P, surrounding the needle-cylinder. By means of said cams the needles are caused to successively reciprocate during the rotation of the needle-cylinder, in the usual and well-known manner.

In order to afford ready access to the cams c 0, when required for repairs or adjustment, I support the camrings P P independently of each other, and preferably by dividing each of said rings into two or more segmental sections, as at d cl in Fig. 3 of the drawings,

and detachably securing the said rings, respectively, to the top and bottom of an annular plate, D, which surrounds the needle-cylinder, and is supported on standards 0 0, secured to and rising from the bed-plate B.

In order to allow the plate D to be raised or lowered, and thus support the cam-rings P P at the desired elevation to move the needles the desired distance above the needlecylinder during the rotation of the latter, I firmly attach to the top of the standards 0 C screw-threaded posts 0 O, and mount thereon nuts n n, which are formed with upwardprojecting cylindrical necks o 0, and with horizontal shoulders 0 0 at the bases of said necks. The plate D is provided with eyes e, which closely embrace the necks 0 0, while the said platerests on the aforesaid shoulders. Above the plate D are nuts n n, applied to the posts C O and bearing on top of said plate.

The cam-rings P P are preferably attached to the intervening plate D by means of screws 1' t', which are removable and thus allow either of the cam-rings P P to be detached from the plate D when desired.

Having described my invention,what I claim as new, and desire to secure by Letters Patent, is

1. In combination with the rotary needlecylinder, a plate arranged stationary around the exterior of said needle-cylinder, and the lower cam-ring, P, hung on said plate.

2. In combination with the rotary needlecylinder, a plate arranged stationary around the exterior of said needle-cylinder, and the lower cam-ring, P, divided transversely and hung on the aforesaid plate, as and for the purpose set forth.

3. In combination with the bed-plate and needle-cylinder, standards rising from the bed-plate, a plate surrounding the needle-cylinder and supported on the standards, and the cam-rings P P, secured, respectively, to the top and bottom of-the aforesaid plate, as and for the purpose set forth.

4. In combination with the bed-plate and needle-cylinder, the standards 0 O, rising from the bed-plate, the screw-threaded posts 0' 0, attached to the standards, nuts 72 n on said posts, the plate D, supported between said nuts, and the cam-rings P P secured, respectively, to the top and bottom of the plate D, substantially as described and shown.

5. In combination with the bed-plate and needle-cylinder, the standards C O, rising from the bed-plate, the screw-threaded posts 0 0, attached to said standards, the nuts 02, provided with the cylindrical necks 0 and shoulders 0, the plate D, provided with eyes e, closely embracing the necks 0 and seated upon the aforesaid shoulders, the nuts n, applied to the posts-G 0 above the plate D, and

' the cam-rings P P, secured, respectively, to

the top and bottom of said plate, substantially as described and shown.

6. In combination with the bed-plate and needle-cylinder, standards rising from the bed-plate, the plate D, surrounding the needle-cylinder and supported on the aforesaid standards, and the cam-rings P P, composed of segmental sections secured to the top and bottom of the plate D, substantially as described and shown.

In testimony whereof I have hereunto signed my name, in the presence of two witnesses, at Little Falls, in the county of Herkimer, in the State of New York, this 15th day of January, 1889.

HENRY CUR'IIN. [L. s]

Witnesses:

HADLEY J ONES, WALLACE Hose. 

